ASTM B921 PDF

Find the most up-to-date version of ASTM B at Engineering Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys. Active Standard ASTM B | Developed by. Start. Standard ASTM standard · ASTM B Subjects. Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products (ASTM VOL ).

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It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. This is the only non-hex process that meets the MIL spec, and so I suspect that your vendor switched to this, and I have no reason to question your vendor’s statement. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

This abstract is a brief summary of the referenced standard. AnoChem TCP is an excellent solution for the following applications: My question is, would they be eliminating the gold tint strictly due to environmental concerns or as an easy differentiation between finishes and will the finish still be in compliance with ASTM B?

Regards, Ted Mooney, Satm. Also, is there a way to determine if the finish truly exists. I have just checked today with several chem.

Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.

Non Hexavalent Chromium Conversion (Clear)

AnoChem TCP should be applied where conductivity, paintability or corrosion resistance atm required on aluminum substrates. Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements.

None add yellow to their product. These, in conjunction with its superior cleaning process and statistical process control, have given Anoplate the edge with optimizing and being able to certify its AnoChem TCP coating for Class 3 applications.

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Click here b92 download full list of books. This abstract is a brief summary of the referenced standard. AnoChem TCP replaces hexavalent chromate conversion coatings used for aluminum alloys without sacrificing corrosion resistance, electrical contact resistance or organic topcoat adhesion properties while meeting regulatory requirements of ROHS, WEEE and ELV legislation.

Films are normally applied by dipping, but may also be applied by inundation, spraying, roller coating, or by wipe-on techniques.

Land Use and Development. Thanks for the response. This process is almost colorless and cannot be dyed. Coatings are categorized into four classes according to corrosion protection and finish. This may be what your vendors have switched to. We have complaints from both the DoD and the FAA that their inspectors cannot tell if the Non-hex chromate clear conversion coating is asgm the metal or not. AnoChem TCP left has a clear, bright finish with a blue iridescence and should not be mistaken that the part is atsm.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory requirements prior to use. This specification covers the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminum and aluminum alloys intended to retard corrosion; as astmm base for organic films including paints, plastics, and adhesives; and as.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The color produced is not homogenous as you would expect from a dye, but is useful for an inspection aid. B92 plating shops want to switch to V921, so I think it will be ever harder for you to continue to make your parts look like they are carcinogenic when they are not: From beautiful Pine Beach New Jersey: But the fact is that the traditional yellow color was never a dye; it was the inherent aztm of the hexavalent chromium toxin.

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Non Hexavalent Chromium Conversion (Clear)

There were no books found for the applied search filters. B9211 is a trivalent chromium conversion process. The type of conversion coating depends on the composition of the solution and may also be affected by pH, temperature, duration of the treatment, and the nature and surface condition.

AnoChem TCP is an excellent solution for the following applications:. Both impart a clearly visible blue color to the trivalent chromate conversion coating and do not reduce salt spray testing hours.

Enter your account email address to request a password reset: Anoplate maintains an extensive list of corporate approvals and certifications. Maybe somebody can add a UV trace to the coating similar to parylene conformal coating–there is a UV trace added. I don’t think you need to give up on ASTM compliance, but should consider getting away from the gold colored dye.

Print 1 2 3 4 5 page sstarting from b9221 current page. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Anoplate, maintains its own inhouse salt-spray test chamber and its own electric resistivity test equipment. Historical Version s – view previous versions of standard.

As your partner astk the supply chain, our commitment to quality and professional service assures you that you have chosen the right supplier for your metal finishing needs. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. Traditional hexavalent chromium right has its characteristic gold iridescence.